(21125) Orff Main-belt Asteroid
Discovered on 30 December 1992 by F. Borngen at Tautenburg.
German composer Carl Orff (1895-1982), best known for his Carmina burana, developed music-pedagogic, rhythmic and tonal ideas with K. Maendler. Their “Orff-Instrumentarium” obtained international acceptance and, in 1961, the Orff Institute was founded and directed by him in Salzburg.Naming citation (20010705/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Orff is today
Seen from above the solar system on 2026-10-14: Orff is 2.02 au from the Sun and 2.49 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 21125 |
| Provisional designation | 1992 YZ4 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 14.42 |
| Orbital period | 3.59 years |
| Semi-major axis | 2.35 au |
| Perihelion – aphelion | 1.98 – 2.71 au |
| Eccentricity | 0.156 |
| Inclination | 7.14° |
| Closest distance between its orbit and Earth's (MOID) | 0.978 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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All asteroids named after someone called Carl